London LON to Konstanz QKZ flight with KLM

British Airways (BA) is the United Kingdom’s flag carrier airline with headquarters in London near its main hub at London Heathrow Airport (LHR). BA is the second largest UK-based airline in terms of fleet size and number of passengers carried. Known as a full-service global airline, British Airways offers year-round low fares to destinations worldwide and flies to and from centrally-located airports. Its extensive global route network includes more than 170 destinations in nearly 80 countries throughout Europe, North America, South America, Asia, Africa and Australia. syn p British Airways (BA) is the flag carrier airline of the United Kingdom with its headquarters in London near its main hub at London Heathrow Airport (LHR). Known as a full-service global airline, BA offers low fares year-round to destinations around the globe and flies to and from centrally-located airports. Its extensive global route network includes more than 170 destinations in nearly 80 countries throughout Europe, North America, South America, Asia, Africa and Australia. BA is also the second largest airline based in the UK in terms of its fleet size and number of passengers carried.

Air France is the national flag carrier of France and one of Europe’s leading airlines, connecting travelers to destinations across Europe, the Americas, Asia, Africa, and the Middle East. Operating from its main hub at Paris Charles de Gaulle Airport, Air France offers a modern fleet with services ranging from affordable Economy fares to Premium Economy and Business Class featuring spacious seating, fine dining, and lounge access. Known for its French hospitality and style, Air France combines comfort, service, and global connectivity for both business and leisure travelers.

Swiss is Switzerland’s leading airline, offering Economy and Business Class fares for your next trip.

Qatar Airways is the national airline of Qatar, headquartered in Doha and based at Hamad International Airport. Established in 1993 and re-launched in 1997, it has grown into one of the Middle East's largest network airlines, operating an extensive network of international services across Europe, the Middle East, Africa, Asia Pacific, and the Americas. The airline offers passenger and air cargo transportation, along with services like corporate travel, online check-in, and in-flight entertainment. Qatar Airways is a member of the Oneworld alliance and operates a modern fleet of over 200 aircraft. It has received numerous accolades, including "World's Best Airline" multiple times.

KLM Royal Dutch Airlines is the flag carrier of the Netherlands and the world’s oldest airline still operating under its original name. Based in Amsterdam Schiphol Airport, KLM connects travelers to destinations across Europe, Asia, Africa, and the Americas. Its modern fleet offers comfort for every type of journey—from affordable Economy fares with in-flight entertainment and WiFi to Premium Comfort and Business Class with extra space, dining, and lounge access. With a reputation for excellent service and global connectivity, KLM is a trusted choice for international travel.

Vueling is a Spanish low-cost airline and one of the largest carriers in Europe, offering affordable flights across Spain, Europe, North Africa, and the Middle East. Operating mainly from its hub in Barcelona, Vueling provides a modern fleet with flexible fare options to suit different types of travelers. Passengers can choose from basic low-cost tickets to fares that include extras such as seat selection, checked baggage, and priority boarding. With WiFi and onboard services available on many routes, Vueling is a popular choice for budget-conscious travelers.

TAP Air Portugal is the national flag carrier and the largest airline in Portugal, with its main hub at Humberto Delgado Airport in Lisbon. As a member of the Star Alliance, TAP operates an average of 2,500 flights per week to more than 90 destinations in over 30 countries. Many of its aircraft feature USB outlets for charging devices, while most long-haul flights include complimentary onboard entertainment with movies, TV shows, music, and games. For travelers looking for affordable options, TAP also offers low-cost fares on select routes, making it easy to find cheap flights with the airline.

Condor Flugdienst GmbH, commonly known as Condor, is a German leisure airline established in 1955 and based in Neu-Isenburg, Hesse, with its main hub at Frankfurt Airport. It offers scheduled and charter flights, operating medium-haul routes to the Mediterranean Basin and the Canary Islands, as well as long-haul flights to destinations in Africa, Asia, North America, South America, and the Caribbean. Condor is recognized for its customer-centric services, providing various travel classes and in-flight amenities to enhance the passenger experience. The airline is also focused on sustainability, continually updating its fleet with more fuel-efficient aircraft.

Eurowings is a German low-cost airline that offers affordable flights across Europe and to select long-haul destinations. As part of the Lufthansa Group, Eurowings connects major European cities as well as holiday destinations with a modern fleet. Passengers can choose from different fare options ranging from basic economy with great value to more flexible tickets that include extra comfort, priority boarding, and additional services. With onboard amenities such as snacks, drinks, and WiFi available on many routes, Eurowings is a convenient choice for budget-conscious travelers.